Panasonic PGS Thermal Graphite Sheets

Panasonic Pyrolytic Highly Oriented Graphite Sheet (PGS) is made of graphite with a structure close to a single crystal. Produced from polymeric film using a head de-composition process, the hexagonal crystal structure of graphite is arranged uniformly in a horizontal 2D structure.

Features

10µm to 100µm thick

700 to 1950W/m.K thermal conductivity

Two to five times higher than copper and up to seven times better than aluminum

Usage and Results

PGS film is used to transfer heat away from a heat source, or to diffuse or spread heat away from a hot spot (A>B).

It can also be used as a highly-efficient thermal interface material.

The efficacy of PGS in reducing IC hot spot temperatures is demonstrated here. The temperatures at the ABS (Acrylnitril-Butadien-Styrol) surface, the IC and the PCB are shown for two different 70µm thick PGS sheet sizes.

Application Example of PGS (Simulation with heat)

Applications

Heat can be transferred away from an IC (LED) to the casing in a camera design, reducing the heat sinking required.

When applied in an IGBT or switching FET module, PGS acts as a thermal interface, reducing the thermal contact resistance and thermal soaking required.